Hay-rake.



J. w. LATIMER.

HAY RAKE.

APPLICATION FILED In as, 190a.

Patented Dec. 22, 1908.

Lfohn LUL J er- ?fitt Hey- J y-i n1: NORRIS PETERS c0., WASHINGTON, n.c.

UNITED STATES PATENT oFFIoE.

' JOHN WARDEN LATIMER, OF CHICAGO, ILLINOIS, ASSIGNOR TO INTERNATIONALHARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented Dec. 22, 1908..

Application filed May 28, 1908. Serial No. 435,412.

To all whom it may concern:

provements in Hay-Rakes, of which the following is a specification.

My invention relates to hay rakes, and particularly to the self-dumptype, and has for its object improved tripping devices designed toconnect the rake head with the wheel in the dumping operation of therake; also to include means for controlling the movement of the usualtoggle link connection between the draft frame and the rake head. Theseobjects are attained by means of the mechansm illustrated in theaccompanying drawing, in which Figure 1 is a side elevation, partly insection, showing the improved tripping mechanism, and also the togglelink controlling means; Fig. 2 is a lan view of portions of the rakehead and dra t frame, showing the manner in which the tripping lever isconnected.

therewith; Fig. 3 is a rear elevation of Fig. 2; Fig. 4 represents aportion of the draft frame, having the adjustable knock-off block designed to cooperate with the tripping lever;

Fig. 5 represents the operative parts of the tripping mechanism invarious positions of its adjustment; Fig. 6 is an end elevation of atoothed disk that forms a part of the hub of the carrying wheels; andFig. 7 represents a forward portion of the toggle link connectionbetween the draft frame and the rake head.

Referring to the drawing, wherein the same reference numerals designatelike parts throughout the several views, 1 represents a carrying wheelhaving a toothed disk 2 forming a part of the hub thereof.

3 represents a rake head adapted to rock about the axis of the carryingwheels in a common way.

41 represents a rock shaft pivotally mounted upon the rake head andhaving pawls 5 at opposite ends thereof adapted to engage with thetoothed disk upon the hubs of the carrying wheels.

6 represents a draft frame member arranged parallel with the rake headand pivoted thereto by means of the brackets 7 secured o the draft frameand bracket memhere 8 sec ed to the r ke head- 9 epres ntsa cross framemember forming part of the draft frame, and 10 represents the thillssecured to the draft frame.

11 is a bracket member secured to the cross frame member of the draftframe, and having a foot lever 12 pivotally mounted thereon intermediateits ends by means of a pivot bolt 13. 14 re resents a bracket secured tothe rake hea and having a series of openings 15 whereby the bracket maybe adjustably connected with the rear end of the toggle link 16, theforward end of which link is pivotally connected with the rear end ofsaid foot l'ever by means of the pin 17.

18 represents an adjustable bolt received by the bracket member 11 andthat part which the lever 12 is designed to contact in a manner to limitthe upward swing of the toggle links.

Pivotally connected with the bracket 11 is an independent foot lever 19having a cam slot, which slot is adapted to receive a laterallyprojecting stud 20 secured to the rear portion of the foot lever 12, thefunction of the independent lever being to control the movement of thetoggle connection in its movement from the position shown in dottedlines in Fig. 1 to the position shown in full lines, the movementtherein illustrated being thlat caused by the dumping operation of thera (e.

It being desirable in .o crating the rake to rovide means whereby t erake may be held in an elevated osition, by means of mechanismcontrolled by the foot of the operator, and when the links are in theposition shown in dotted lines in Fig. 1, the stud 20 has reached thelower end of the cam slot, and by means of pressure downward upon theindependent lever the operator may retain the rake in an elevatedposition. I Secured t0 the rock shaft 4, near its middle portion, is afoot lever 21 that extends rearward therefrom and then is curved upwardand forward above the rake head, and having at its forward end a footpiece 22.

23 represents a bracket secured to the rake head adjacent to the lever'21, which bracket is provided with a laterally projecting ear ortion24, and 25 represents a link having ts lower end pivotally connectedwith the foot lever 21, and its upper end slidably re ceived by anopening in the car 24.

6 rep sents a sp ing surrounding the and operative between the earZQ-tmd th lever to retain the latter in different positions ofadjustment, as shown in Figs. 1 and 5, wherein the axis of theconnection between the link and the lever is represented as moving-inaposition upon one side of a line AB passing through the opening in theear and on the axis of the rock shaft to a position upon the oppositeside of the line.

When the tripping lever is in the position shown in Fig. 1, the pawlmembers of the rock shaft are disengaged from the toothed disks. asshown in full lines in Fig. 6, and when it is desired to dump the rakethe operator will press down upon the foot lever 22 and swing the leverforward against the action of the spring 26 until the link reaches aposition parallel with the line A--B, when the action of the spring willoperate to give a further forward movement to the lever as the pivotalconnection of the link passes the line between the opening in the ear 24and the axis of the rock shaft, and such movement will cause the pawlsto engage with the toothed disks, as shown by dotted lines in Fig. 6,and thereby cause the rake head to rock about its axis in a well-knownway to relieve the rake of its load.

27 represents a contact block secured to the draft frame 6 and havingstep portions 28 of varying heights. The block is adjustablelongitudinally along the member 6 by means of the bolt 29 received bythe slotted opening 30 through the base portion of the block. The blockmay also be placed in a reversed position upon the part 6. v

31 represents a downwardly extending web portion forming a part of thefoot lever 21, which web portion is designed to contact with the stepportion 28 of the block 27 in a manner to cause the lever to rock orturn the rock shaft about its axis in a manner to release the pawls fromengagement with the toothed disks.

By means of the longitudinal adjustment of the contact block, or byreversing it on the frame member, any individual step of the series ma;-be placed in position to contact with the part 31 of the foot lever in amanner to release the pawls when the head has reached a predeterminedlimit of forward movement.

It will be seen that in the operation of the mechanism when it isdesired to relieve the rake of its load the operator will press downupon the tripping lever 21 and the action of the spring 26 will hold thelever in that position and cause the pawls to engage with the tootheddisk until said lever is moved in an opposite direction by contact withthe block, as before described.

Vl hat I claim as my invention, and desire to secure by Letters Patent,is:

1. A hay rake having, in combination, carrying vi heels having tootheddisks connected with their hub portions, a rake head supported by saidwheels and adapted to rock about the axis thereof, a rock shaft mountedupon said head and having pawls at opposite ends thereof adapted toengage with said toothed disks when said shaft is rocked in onedirection, means for rocking said shaft, said means including a leversecured to said shaft and extending forward therefrom, a verticallyarranged bracket secured to said head adjacent said lever and having alaterally projecting ear portion, a link having one end pivotallyconnected with said lever and its opposite end slidably received by anopening in said ear portion, the axis of the connection of said link andsaid lever being adapted to swing from side to side of a straight linepassing through the opening in said ear portion and the axis of saidrock shaft, and a spring surrounding said link and operative betweensaid ear portion and said lever to yieldingly retain said lever ineither position.

2. A hay rake having, in combination, carrying w heels having tootheddisks connected with their hub portions, a rake head supported by-saidwheels and adapted to rock about the axis thereof, a draft framepivotally connected with said head, a rock shaft mounted upon said headand having pawls at opposite ends thereof adapted to engage with saidtoothed disks when said shaft 1S rocked in one direction, means forrocking said shaft, said means including a lever secured to said shaftand curved forward therefrom, a vertically arranged bracket secured tosaid head adjacent said lever and having a laterally projecting earportion, a link having one end pivotally connected with said lever andits opposite end slidably received by an opening in said ear portion,the axis of the pivotal connection of said link and lever being adaptedto swing from side to side of a straight line passing through theopening in said ear portion and the axis of said rock shaft, a springsurrounding said link and operative between said ear portion and saidlever to yieldingly retain said lever in either position, and aknock-off block secured to said draft frame and adapted to contact withsaid lever when said head is rocked to a pre-determined limit.

3. A hay rake having, in combination, carrying w heels having tootheddisks connected with their hub portions, a rake head supported by saidwheels and adapted to rock about the axis thereof, a draft framepivotally connected with said head, a rock shaft mounted upon said headand having pawls at opposite ends thereof adapted to engage with saidtoothed disks when said shaft is rocked in one direction, means forrocking said shaft, said means including a lever secured to said shaftand curved forward therefrom, a vertically arranged bracket secured tosaid head adjacent said lever and having a laterally projecting earportion, a link having one end pivotally connected with said lever andits opposite end slidably received by an opening in said ear portion,the axis of the pivotal connection of said link and lever being adaptedto swing from side to side of a straight line passing through theopening in said ear portion and the axis of said rock shaft, a springsurrounding saidlink and operative between said ear portion and saidlever to yieldingly retain said lever. in either position, and anadjustable knock-off block secured to said draft frame and adapted tocontact with said lever when said head is rocked to a pre-determinedlimit.

i. A hay rake having, in combination, carrying wheels having tootheddisks connected with their hub portions, a rake head supported by saidwheels and adapted to rock about the axis thereof, a draft framepivotally connected with said head, a rock shaft mounted upon said headand having pawls at opposite ends thereof adapted to engage with saidtoothed disks when said shaft is rocked in one direction, means forrocking said shaft, said means including a lever secured to said shaftand curved forward. therefrom, a vertically arranged bracket secured tosaid head adjacent said lever and having a laterally projecting earportion, a link having one end pivotally connected with said lever andits opposite end slidably received by an opening in said ear portion,the axis of the pivotal connection of said link and lever being adaptedto swingfrom side to side of a straight line passing through the openingin said ear portion and the axis of said rock shaft, a springsurrounding said link and operative between said ear portion and saidlever to yieldingly retain said lever in either position, and alongitudinally adjustable and reversible knock-off block secured to saiddraft frame and adapted to contact with said lever when said head isrocked to a pre-determined limit.

5. A hay rake having, in combination, carrying wheels having tootheddisks connected with their hub portions, a rake head support-- ed bysaid wheels and adapted to rock about the axis thereof, a draft framepivotally connected with said head, a rock shaft mounted upon said Headand having pawls at opposite ends thereof adapted to engage with saidtoothed disks when said shaft is rocked in one direction, means forrocking said shaft, said means including a lever secured to said shaftand curved forward therefrom, a vertically arranged bracket secured tosaid head adj acent said lever and having a laterally projecting earportion, a link having one end pivotally connected with said lever andits opposite end slidably received by an openin in said ear portion, theaxis of the pivota connection of said link and lever being adapted toswing from side to side of a straight line passing through the openingin said ear portion andthe axis of said rock shaft, a spring surroundingsaid link and operative between said ear portion and said lever toyieldingly retain said lever in either position, and a longitudinallyadjustable and reversible knockoff block having step port-ions arrangedin varying planes, said knock-off block being secured to said draftframe and adapted to contact said lever when said head is rocked to apre-determined limit.

6. A hay rake having, in combination, carrying wheels, a rake headsupported by said wheels and adapted to rock about the axis thereof, adraft frame pivotally connected with said head, a toggle link connectionbetween said head and said draft frame, said toggle connection includinga foot lever, a laterally projecting stud forming a part of said footlever, an independent lever pivotally mounted upon said draft frame andhaving cam surfaces adapted to contact with said stud in a manner tocontrol themovement of said toggle connection.

7. A hay rake having, in combination, carrying wheels, a rake headsupported by said wheels and adapted to rock about the axis thereof, adraft frame pivotally connected with said head, said draft frameincluding a cross frame member, a toggle link connection between saidhead and said cross frame member, said toggle connection including afoot lever, a laterally projecting stud forming a part of said footlever, an independent foot lever pivotally mounted upon said cross framemember and having a cam slot, said stud being received by said cam slotin a manner to control the movement of said toggle connection.

JOHN WARDEN LATIMER.

Witnesses:

C. F. CRUMB, P. H. SHEA.

